IT is chronically long or short on resources. Resources need to be subtracted or added based on attrition, changes in tech trends, and the need to scale operations or respond on demand.  Meanwhile HR sits between a rock and a hard place, mandated to find the resources IT needs within budget constraints, while handicapped by a limited understanding of technologies and jargon, and courted by a multitude of IT vendors. What's the best way to align HR with the ever changing needs of IT?